![]() “We have shown for the first time that it can regenerate during running.” Brain sizeĪ runner’s joints aren’t the only parts of their body affected. “It was thought that cartilage could only regenerate during rest,” he says. They found that the runners’ cartilage seemed to degrade during the first 2500 km of the race.īut after that distance – around 60 marathons – the cartilage seemed to recover, says Schütz, who presented the findings at the Radiological Society of North America annual meeting in Chicago this week. Scanning feet and leg joints every 900 kilometres, Schütz and his team measured the amount of water that was released from the shock-absorbing cartilage between the bones – a sign of whether cartilage is breaking down. The team took a portable MRI scanner with them, and periodically scanned the legs, feet, heart, brains and cardiovascular systems of the athletes, as well as taking blood and urine samples. In 2009, they followed a group of 44 runners as they ran the nine-week race across Europe. ![]() ![]() Uwe Schütz at the University Hospital of Ulm in Germany and his colleagues have spent the last six years finding out.
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